Our Verdict
It's a Tie
Both offer 296Wh capacity and 300W AC output with 1000 cycle life. Product B offers more output versatility with 8 ports (3 DC, 2 USB-A) compared to Product A's 6 ports (2 DC, 1 USB-A). Choose Product A if weight is a slight concern (6.5 lbs).
Bottom Line: Both products are excellent choices. Both offer 296Wh capacity and 300W AC output with 1000 cycle life.
Key Differences
The most significant spec differences at a glance
Dc Ports
33% lessUSB-A Ports
50% lessAdvantages
Where each product wins
EnginStar
- Dc Ports: 33% higher (2 vs 3)
- USB-A Ports: 50% higher (1 vs 2)
Who Should Buy Which?
Find the right product for your needs
Buy EnginStar if...
EnginStar Portable Power Station
The ideal buyer for Product A is an outdoor enthusiast or emergency prepper who prioritizes maximum portability and reliable power for essential electronics. If you need a lightweight (6.5 lbs) backup power source for short camping trips, car emergencies, or power outages, and value the protection of a 300W pure sine wave AC output for sensitive devices like a CPAP machine, this 296Wh unit is an excellent choice. Its three recharging methods add flexibility, making it suitable for users who need a compact, durable power solution without breaking the bank.
Buy EnginStar if...
EnginStar Solar Generator, 300W
Product B is perfect for the adventurous traveler or small family who needs a versatile power solution to keep multiple gadgets charged. If your priority is maxing out connectivity for various devices simultaneously – thanks to its 3 DC ports and 2 USB-A ports – during road trips, RV outings, or backyard gatherings, this 296Wh power station is ideal. Its 300W pure sine wave output safely powers electronics. While solar panels are separate, its "solar generator" moniker suggests an intent for off-grid use, appealing to those planning future solar integration for extended adventures.
Spec Comparison
11 specs compared
| Specification | ![]() | ![]() |
|---|---|---|
| Price | $200 | $200 |
| Rating | 4.3(1.4k) | 4.3(1.4k) |
| Capacity Wh | 296W | 296W |
| Chemistry | Li-ion | Lithium |
| AC Output Watts | 300W | 300W |
| Dc Ports | 2 | 3 |
| AC Outlets | 2 | 2 |
| Cycle Life | 1000 | 1000 |
| Weight | 6.5 lbs | — |
| USB A Ports | 1 | 2 |
| USB C Ports | 1 | 1 |
| Model Number | R300 | R300 |
| Charge Time Hours | — | 7 hrs |
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Pros & Cons
Quick overview of strengths and weaknesses
EnginStar Portable Power
- Lightweight 6.5 lbs for easy portability
- 300W pure sine wave AC output protects devices
- 8 output ports charge multiple items concurrently
- Three recharge methods: wall, car, solar panel
- Solar panel not included; separate purchase required
- Max 65W input speed; slower full recharge
- Requires charging every 2-3 months for upkeep
EnginStar Solar Generator,
- Delivers 300W AC power with 296Wh battery capacity.
- Two 110V pure sine wave AC outlets.
- Recharges via AC, car, or 12-25V solar input.
- Rated for 1000 charge cycles.
- Limited to devices under 300W total output.
- 7-hour recharge time using AC wall adapter.
- Solar panel requires separate purchase.
Frequently Asked Questions
Common questions about this comparison
Which power station is better for charging multiple devices simultaneously?
Product B is better for charging more devices. It features 8 output ports, including 3 DC and 2 USB-A ports. Product A has fewer, with 6 ports total (2 DC and 1 USB-A), making Product B more versatile for concurrent charging needs.
What is the main difference between these two EnginStar R300 models?
The primary difference lies in the number of output ports. While both offer 296Wh capacity and 300W AC output, Product B provides 8 total output ports (3 DC, 2 USB-A, 1 USB-C, 2 AC), whereas Product A offers 6 ports (2 DC, 1 USB-A, 1 USB-C, 2 AC).
Can these power stations run a CPAP machine?
Yes, both EnginStar R300 models are suitable for powering CPAP machines. With a 296Wh capacity and 300W pure sine wave AC output, they provide sufficient and stable power for medical devices like CPAP during camping, emergencies, or power outages.
How do the recharge times compare for these units?
Both units have similar recharge characteristics. Product A notes a max 65W input, leading to slower full recharge. Product B specifies a 7-hour recharge time via AC wall adapter. Both can also be recharged via car or solar panel (sold separately).
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